Failure Audit - Event viewer

Hi,

Could someone assist to address this issue.

Event Type:      Failure Audit
Event Source:      Security
Event Category:      Logon/Logoff
Event ID:      529
Date:            10/18/2011
Time:            10:57:13 AM
User:            NT AUTHORITY\SYSTEM
Computer:      EMAILSERVER
Description:
Logon Failure:
       Reason:            Unknown user name or bad password
       User Name:      John
       Domain:            DXB492
       Logon Type:      3
       Logon Process:      NtLmSsp
       Authentication Package:      NTLM
       Workstation Name:      DXB492
       Caller User Name:      -
       Caller Domain:      -
       Caller Logon ID:      -
       Caller Process ID:      -
       Transited Services:      -
       Source Network Address:      157.147.13.10
       Source Port:      0

Note: The machine DXB492 is not on domain, it is under a workgroup. The above event is coming on my MS Exchange 2003 server.

Zak
ZAK360Asked:
Who is Participating?
 
Dhiraj MuthaLevel DCommented:
Is you exchange server on workgroup environment? Microsoft does not recommend that strictly.
0
 
ZAK360Author Commented:
solved
0
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